Deep-well pump



May 7, 1929.

R. R. BQSTIC DEEPWELL PUMP Filed April 14, 1926 2 Sheets-Sheet INVENTORl RALPH R. BOST/O A TTORNE Y.

R.. R. BOSTIC DEEP WELL PUMP 5 May 7, 1929.

Filed April 14, 1926 2 Sheets-Sheet.

2 m Q v 4 s w E m 4 E r n A J." u 4 E 4 JH-J. u 7 4 3 5 3 4 a w 1 8 4 I V 4 2 2 i 2 4 M .0 2 o m 2 a 4 4 H a 3 H m u 5 I 8 I w 4 w n N u u z 6 m u w 3 w E QRHMGHWWWW WWN NW RMNJQWWMW E hnxhi \JVIKTEEX 5. l..- \l..$.) 9 4 M. 3 W M H M A TTORNE Patented May 7, 1929. I i i I r r UNITED STATES PATENT OFFICE.

RALPH R. BOS TIC, OF LOS ANGELES, CALIFORNIA.

DEEP-WELL PUMP.

Application filedApril 14, 1926, Seria1 No. 101,874.

This invention relates to deep well pumps. range guide members 19 and 20. The sucker The general object of the invention 1 is to rod may include a polished rod ifdesired. provide a pump which is particularly adapted Each of these guidemembers l9 an d 20 is for economical operation for lifting oil from rabbeted as at 21 and 22 to provide a recess in I d il ll which racks23 and 2a: are mounted. The rack on Another object of the invention is to pro 23 is connected to the upper portion 17 of vide a deep wellpump wherein, the pump the sucker rod while the rack 25% is connected a *tuating means comprises two members to the lower portion 16 01 the sucker rod. The which are arranged for movement in opposite rear portions 0]? the racks are adapted to en-- directions and wherein the parts are so as anti-frictionmembers, shown as roller 65 sociated that one or" the parts acts as a co unterbearing 25. i g f balance for the other part thereby effecting The teeth on the racks are shown at 26 and a great Saving i power. V these teeth are adapted to engage pinions 27, Another object of the invention is to pro- 28, 29, 3O and31 which are mounted on shafts vide a deep well pump wherein the sucker rod 33, 34, 35 and Each of these shafts is 70 is made in two or more parts and wherein m unted in bearings 37 (see F 6) which mechanism is provided to cause simultaneous are M i kS 38 ured Within the en. movement of the parts in opposite directions. lillged portion of the tubing.

Other objects "of the invention will be ap From the foregoing description it will be parent from the following descriptiontaken apparentthat when the upper portion 17 of 7 i in connection with the accompanying draw the sucker rod is pushed downwardly the ings, wherein: 7 lower portion'ld of the sucker rod will raise Fig, 1 i a t l ti l iew partly in to hit the fluid in the tubing 11. g l ti h wing my improved pump; Connected to the upper portion 17 of the Fi 21 a t l ti l i th o h th sucker rod I show a piston 39 whichis' shown 80 casing showing a portion of my invention in as provided with packing rings i0 which ens l tio and a portion in section; the cylindrical inner portion of the Fig, 3 is 1, central sectignal iew howing tubing 11. This VFtlVG member is P11111861 t0 the racks and pinions used with my inven h porti n 17 by means of a pin 41. The

tion; valve member is shown as provided with pas- Fig. 4iis an enlarged sectional view showing sages 42 which are provided with valveseats th lo al b at the upper portion thereof. These valve Fi 5 i a i il i h win th u r seats are adapted to be engaged by valve balls valve mb r; v i 48. Guards 41 i are arranged about the ball 35 Fig. 6 is a section on line 66 Fig. 3, and Valves. 1 I 901 Fig. 7 is a section on line 77, Fig. 5. Mounted above the piston 39 I show a fixed Referring to the drawing by reference valve member 45 which has packing rings 4-6 haract rs, I have h wn a easi at 10, for engaging the portion 17 of the sucker rod. f lVithin this casing is shown a tubing 11. This This Valve lnen'ibcr 15 is provided with pas- 40 tubing has within it the part constituting my Sages 4 b VillVS a d guards Silnimproved deep well pump. Adjacent to the ilar to that described in connection with the bottom of the tubing 10, I show a working plston 39. I prefer to make the piston 39- barrel 12 which is provided with a standing and the valve member 45 in'two pieces which valve 13 and an upper valve 1 1. The specific may be secured together in any desired man- 45 type of working barrel and valve'therein form ner. It will be understood that other types no part of my invention and a further deof piston and valve member may be used if scription thereof is deemed unnecessary. desired, without departing from the spirit of A sucker rod 15 is connected to the workmy invention. If desired, I may omit the ing barrel. This sucker rod comprises two upper valves. 7

50 portions, alower portion 16 and an upper por- In operating my improved pump the up tion 17. The two portions 16 and 17 of the per portion 17 of the sucker rod will be moved sucker rod are arranged in an enlarged pordownwardly and as itmoves downwardly the tion 18 of the tubing 11. This enlarged por-' rack 23acting through the pinions 27 28, etc, tion 18 may be made from a number of con will lift the rack24. thereby raising fluid in 55 nected parts and in one of these parts, I arthe bottom of the tubing. The portion 17 of K. i but there will be no lifting action exerted on the sucker rod will then moveupwardly caus ing the portion 16 of the sucker rod to move downwardly after which the operation will be repeated. After a short interval the height of the fluid raised in thetubing 11 will be such that as the portion 1'4" moves down the fluid will pass through the passages 42.

The fluid will be trapped by the valves 43 and as the piston moves upwardly the fluid will be carried by it. In a short time there will be suflicient fluid above the piston to cause a part of the fluid to pass through the passages l7 in the valve member 425.

As a result of this action fluid will be lifted to a position above the piston 4-7 when the portion 17 moves downwardly but the fluid above the valve member will not be lifted duringthis operation. When the por-- tion 1'? of the sucker rod moves upwardly he fluid above the piston 39 will be r the fluid below the piston so thatonly part of the column of oil will be raised during each movement.

The location in the well of the enlarged portion containing the piston 39 and the racks and pinions may be varied to suit the particular requirements of each installation but the parts will preferably be so arranged that one portion of the sucker rod will act as a counterbalance for the other portion so that during each pumping stroke there will be no need of lifting the entire rod but the portions will be preferably so proportioned that the weight lifted will be proportional to the weight of the fluid being lifted. With my invention the weight lifted by the working beam on its working stroke or the work performed by other pumping means will be greatly reduced.

. From the foregoing description it will be apparent that I have provided a novel deep well pump which can be economically manufactured and which is highly ellicient in use.

Having thus described my invention, I claim:

In combination with a well including a casing havinga tubing strin therein and a two part sucker rod adapted to actuate a barrel nlun 'er an enlar 'ed section inter- L D 7 D posed in said tubing string, said sucker rod including an upper and a lower part arranged in said enlarged section, oppositely disposed guide members in said enlarged portion, guideways in said members, a gear toothed rack positioned in each of said guideways, one of said racks being secured to the upper sucker rod part, and the other of said racks being secured to the lower sucker rod part, anti-friction hearings in the wall. of each of said guideways against which said racks are adapted to bear, a plurality of ears adapted to mesh with the gear teeth of each of said racks, each of said gears beingsupported on a shaft and secured thereto, each end o't said shaft being adapted to be positioned m an anti-friction bearing, each of said anti-friction bearings being positionedm a boss fixed to the interior of said en-- larged section.

' In testimony whereof, I hereunto affix ny 

